ReadyBoost is a feature in Windows Vista, Windows 7, Windows 8.1 and Windows 10 that allows a user to increase their computer's performance by using a USB flash drive or SD card to supplement the RAM (random-access memory) available to the operating system. ReadyBoost works by using the flash memory as a secondary memory cache, which is used to store frequently used data. By storing this data on the flash memory, it can be accessed faster than if it were stored on the hard drive. This can improve the overall performance of the system, especially when using programs that require a lot of memory. ReadyBoost also helps to reduce disk thrashing and fragmentation, which can improve the overall performance of the system.
Discontinued Last updated 2013. See changelog at http://hummerstudio.com/hddturbo